发明名称 |
METHOD AND DEVICE FOR THE PRODUCTION OF AN ESSENTIALLY CONTINUOUS FINE THREAD |
摘要 |
<p>The invention relates to a method and a device for the production of essentially continuous fine threads made of meltable polymers. The polymer melt is spun from at least one spin hole (5) and the spun thread is attenuated using gas flows which are accelerated to achieve high speeds by means of a Laval nozzle (6). As a result of the specific geometry of the melt hole (4) and the position thereof in respect to the Laval nozzle (6), the temperature of the polymer melt, the throughout per spin hole and the pressures determining the velocity of the gas flow upstream and downstream from the Laval nozzle (6) are controlled in such a way that the thread reaches an internal hydrostatic pressure before solidifying, whereby said thread bursts into a plurality of fine threads.</p> |
申请公布号 |
EP1192301(B1) |
申请公布日期 |
2004.02.18 |
申请号 |
EP20000949198 |
申请日期 |
2000.06.21 |
申请人 |
GERKING, LUEDER, DR.-ING. |
发明人 |
GERKING, LUEDER, DR.-ING. |
分类号 |
D01D4/02;D01D5/098;D04H1/724;D04H1/732;D04H3/03;D04H3/16;(IPC1-7):D01D5/098 |
主分类号 |
D01D4/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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